Now showing items 61-70 of 632
Adaptive transdure basert på tidsreversering. Målinger på en 5x5 array prototype
(The University of Bergen, 2009-06-11)
Utvikling av adaptiv transduserarray som er ment for tidsreverserende bruk på en olje/gass-separator. Prinsippet består i styring av en transduser oppdelt i små ankeltceller (array). Hver celle styres av sin egen ...
Effect of Combined Low Salinity and Surfactant Injection on Oil Recovery in Aged Bentheimer Sandstones at Different Temperatures
(The University of Bergen, 2012-06-01)
A moderate increase in crude oil recovery by reduction in salinity of the injection brine has been observed for numerous laboratory core flood experiments. The underlying mechanisms behind increased recovery by low ...
Methane and carbon dioxide exchange production studies from exposed natural gas hydrate
(The University of Bergen, 2010)
Two laboratory experimental setups have been designed in collaboration with the Reservoir Physics Group at the Department of Physics and Technology. The equipments have been completed and tested. The first experiment was ...
Comparison of residual oil cluster size distribution, morphology and saturation in oil-wet and water-wet sandstone
We imaged an oil-wet sandstone at residual oil saturation (Sor) conditions using X-ray micro-tomography with a nominal voxel size of (9 μm)3 and monochromatic light from a synchrotron source. The sandstone was rendered ...
Reaching towards higher masses of supersymmetric particles decaying to tau leptons
(The University of Bergen, 2014-06-30)
This thesis presents an optimisation of the search for SUSY in final states with one tau lepton, jets and missing transverse energy. The SUSY model considered is mSUGRA with the parameter values: A_0 = -2m0, tan(beta) ...
Monitoring and calibration of the ALICE time projection chamber
(The University of Bergen, 2010-08-31)
Karakterisering av silika nanopartikler for økt oljeutvinning
(The University of Bergen, 2014-09-01)
Anvendelsen av silika nanopartikler for EOR-formål krever stabile dispersjoner ved typiske reservoarforhold. Optimale silikadispersjoner vil være stabile over lengre tid ved nøytrale pH- verdier og høye elektrolyttko ...
Phase Field Theory Modeling of CH4 and CO2 Fluxes from Exposed Natural Gas Hydrate Reserviors
(The University of Bergen, 2009-10-01)
Natural gas hydrates are widely distributed in sediments along continental margins, and harbor enormous amounts of energy. Gas hydrates are crystalline solids which occur when water molecules form a cage like structure ...
An Experimental Study of CO2 sequestration in saline aquifers and gas hydrates
(The University of Bergen, 2014-09-10)
Processes related to the displacement of brine by CO2 were studied in core flood experiments in high-permeable, homogeneous Bentheim sandstone using a medical CT scanner. These processes are of high relevance for prediction ...
Experimental study of diffusive oil recovery during low salinity waterflooding and miscible CO2 injection in sandstones and shales
(The University of Bergen, 2014-11-24)
This experimental thesis presents a study of two diffusive EOR techniques; low salinity waterflooding in 2D sandstone silicon wafer micromodels and miscible CO2 injection in tight shale core samples. Tests were conducted ...